It achieves its huge health-care savings by indexing the tax credits and vouchers to a measure of inflation smaller than the estimated growth in health costs over recent decades.

它通过指数化税收优惠，用代金券量度通货膨胀小于近十年来健康保险成本的增长值来达到巨额的健康保险储蓄。

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Not indexing tax rates for cost-of-living increases by city and region is also unfair.

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Most of them reject all talk of increasing the petrol tax, or even indexing it to inflation, says Erich Zimmermann of Taxpayers for Common Sense, a pressure group.

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Indexing of brackets lowers tax bills by including more income in lower brackets.

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